Ben and Arduino (again)

Bas Wijnen wijnen at
Tue Mar 9 12:11:01 EST 2010

On Mon, Mar 08, 2010 at 08:36:22PM +0100, David Reyes Samblas Martinez wrote:
> >> > You can also use the buzzer itself; its wires are already available.  Of
> >> > course you lose the buzzer then, because you remove it.
> > Buzzer is only one processor signal, the another one is GND,
> So there is a ground near :) good!

Ground is needed as well, indeed.  However, the point is that serial
port is a two-wire signal (not counting ground), so you have only
transmit or receive, but not both.  I forgot that you wanted two
signals, so thank you Carlos for correcting. :-)

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